نتایج جستجو برای: dynamic magnification factors

تعداد نتایج: 1465648  

2004
Adam Amara Thomas J. Cox Jeremiah P. Ostriker

Galactic sized gravitational lenses are simulated by combining a cosmological N-body simulation and models for the baryonic component of the galaxy. The lens caustics, critical curves, image locations and magnification ratios are calculated by ray-shooting on an adaptive grid. It is found that the simulations do not cause the observed number of violations of the cusp caustic magnification relat...

2013
TaeBum Lee

OBJECTIVES The aim of this hospital-based prospective study was to evaluate the diagnostic ability of breast cancer screening in Korean middle-aged women using age, ultrasonography, mammography, and magnification mammography, which are commonly used in most hospitals. METHODS A total of 21 patents were examined using ultrasonography, mammography, and magnification mammography, and their data ...

Journal: :Gut 2007
Han-Mo Chiu Chi-Yang Chang Chien-Chuan Chen Yi-Chia Lee Ming-Shiang Wu Jaw-Town Lin Chia-Tung Shun Hsiu-Po Wang

BACKGROUND Discrimination between neoplastic and non-neoplastic lesions is crucial in colorectal cancer screening. Application of narrow-band imaging (NBI) in colonoscopy visualises mucosal vascular networks in neoplastic lesions and may improve diagnostic accuracy. AIM To compare the diagnostic efficacy of NBI in differentiating neoplastic from non-neoplastic colorectal lesions with diagnost...

2016
D. Wajngarten P. P. N. S. Garcia

Background: Loupes represent a type of magnification and their use can promote higher quality on dental treatment. Besides those advantages magnification can be beneficial for musculoskeletal health maintenance on dental professionals. Aim: This study intends to review the literature in order to verify what has been studied regarding the influence of magnification on work posture of dentists. M...

Journal: :American Journal of Clinical Pathology 1998

Journal: :Dental Poster Journal 2020

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده مهندسی صنایع 1387

according to webster and wind (1972) and anderson et al (1987), “organizational buying is a complex process and involves many people from different functional areas, multiple goals and potentially conflicting decision criteria. moreover, the customers of today are also more knowledgeable and selective when making their purchasing decisions. since a key to organizational survival is the retentio...

Farhab Sobouti, Saifollah Rasouli, Shamsedin Esmaeili,

We have built a vertical seismometer that works based on the moiré technique. One grating is attached to the suspended mass and one to the frame of the instrument. The two gratings are in relative motion, and the resulting moiré pattern magnifies this motion. The intensity of a light beam passing through the moving moiré fringes changes with time, and a light detecting syst...

Journal: :Nephrology Dialysis Transplantation 2008

Journal: :British Dental Journal 2015

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